Membrane unloading device and membrane defect detection equipment

Abstract

The utility model discloses a piece unloading device and a piece defect detection device, the piece unloading device comprises a piece unloading table, the piece unloading table comprises a piece unloading plate and a piece unloading driving device, the piece unloading plate is driven by the piece unloading driving device to switch between a piece loading position and a piece unloading position, and the piece unloading driving device drives the piece unloading plate to switch between a piece loading position and a piece unloading position. The sheet carrying position is the position where the upper surface of the lower sheet plate carries a membrane; the film discharging position is the position where the film discharging plate is opened towards the bottom face of the film discharging table to form a film falling channel allowing the film to fall down. In an initial state, the lower sheet plate is located at the sheet carrying position, the upstream conveying equipment conveys the detected membrane to the lower sheet plate, if the membrane is a second type of product, the lower sheet plate is kept at the sheet carrying position, and the second type of product is transferred to the corresponding position by the transfer device. And if the membranes are first-class products, the membrane unloading plate is driven by the membrane unloading driving device to be switched to the membrane unloading position, and the first-class products fall down through the membrane falling channel, so that the second-class products and the first-class products are separated.

Description

Technical Field

[0001] The utility model relates to the technical field of diaphragm defect detection equipment, in particular to a film unloading device and diaphragm defect detection equipment. Background Art

[0002] Reflective sheet is an important component of display devices, mainly used to improve the viewing effect of display devices (such as TVs). This reflective sheet can reduce reflection, making the TV screen display clearer and the brightness more uniform. At the same time, it can also protect the viewer's eyes, avoid direct light exposure to the eyes, and reduce visual fatigue.

[0003] In the production process of reflective sheets, defect detection (such as scratches on the surface of reflective sheets) is an important step to ensure the performance of display devices such as televisions. That is, visual cameras are used to identify scratches and other defects on the surface of reflective sheets to separate defective reflective sheets as problematic reflective sheets from non-defective reflective sheets. In the prior art, manual sorting is used to separate the second-category products (such as qualified products) from the first-category products (defective products), and there is no equipment that can separate the second-category products from the first-category products.

[0004] Therefore, how to achieve the sharding of the second category products and the first category products is a technical problem that technical personnel in this field currently need to solve. Utility Model Content

[0005] In view of this, the purpose of the utility model is to provide a sheet discharging device to achieve the separation of the second category products and the first category products;

[0006] Another object of the utility model is to provide a film defect detection device having the above-mentioned film unloading device.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A film unloading device comprises a film unloading platform, wherein the film unloading platform comprises a film unloading plate and a film unloading driving device, wherein the film unloading plate is driven by the film unloading driving device to switch between a film loading position and a film unloading position, wherein the film loading position is the position where the upper surface of the film unloading plate carries a film; and the film unloading position is the position where the film unloading plate opens toward the bottom surface of the film unloading platform to form a film dropping channel for the film to fall.

[0009] Optionally, the above-mentioned lower sheet device also includes a lower sheet controller and a transfer device, wherein the lower sheet controller is used to control the lower sheet driving device to drive the lower sheet plate to switch to the lower sheet position when the membrane on the lower sheet plate in the sheet loading position is a first category product; and control the transfer device to transfer the membrane when the membrane on the lower sheet plate in the sheet loading position is a second category product.

[0010] Optionally, in the above-mentioned film unloading device, it also includes a position adjustment mechanism for adjusting the position of the film, and the position adjustment mechanism is used to adjust the film on the film unloading plate at the film loading position to a target position;

[0011] The lower sheet controller is used to control the position adjustment mechanism to adjust the position of the diaphragm when the diaphragm on the lower sheet plate is a second category product, and then control the transfer device to transfer the diaphragm; when the diaphragm on the lower sheet plate is a first category product, directly control the lower sheet driving device to drive the lower sheet plate to switch to the lower sheet position.

[0012] Optionally, in the above-mentioned lower film device, the lower film controller is also used to receive parameter information of the diaphragm, and control the lower film plate to be in different lower film positions according to the parameter information; the lower film plate at different lower film positions opens at different angles toward the bottom surface of the lower film platform.

[0013] Optionally, in the above-mentioned film unloading device, it also includes a film arrival sensor connected to the film unloading controller, the film arrival sensor is used to detect whether there is a film on the film unloading plate at the film loading position, and send a working signal to the film unloading controller when there is a film;

[0014] The lower film controller is used to perform corresponding actions after receiving the working signal according to whether the film on the lower film plate at the film loading position is a first type of product or a second type of product.

[0015] Optionally, in the above-mentioned lower sheet device, the number of the lower sheet plates is two or more, and the docking position of at least two of the lower sheet plates corresponds to the target position after adjustment by the position adjustment mechanism.

[0016] Optionally, in the above-mentioned sheet lowering device, the sheet lowering platform further has a sheet plate limiting member to limit the safe rotation range of the sheet lower plate.

[0017] Optionally, in the above-mentioned film unloading device, a removable film box is further provided below the film unloading plate, and the film box is used to collect the film films dropped from the film dropping channel.

[0018] Optionally, in the above-mentioned sheet unloading device, the position adjustment mechanism includes a first direction adjustment mechanism, and the first direction adjustment mechanism includes:

[0019] The paddle assembly comprises a pressing plate and a pressing drive device for driving the pressing plate to switch between an idle position and a pressing position, wherein the pressing position of the pressing plate is a position where the pressing plate contacts the surface of the diaphragm, and the idle position of the pressing plate is a position where there is a gap between the pressing plate and the surface of the diaphragm;

[0020] The displacement assembly comprises a displacement driving device, wherein the paddle assembly is arranged at the displacement end of the displacement driving device to drive the paddle assembly to move between a position to be adjusted and a reference position along a first direction to move the diaphragm to a target position in the first direction.

[0021] Optionally, in the above-mentioned lower film device, the position adjustment mechanism also includes a second direction adjustment mechanism, the second direction adjustment mechanism includes two second direction positioning components and a second direction driving mechanism, the second direction driving mechanism is used to drive the two second direction positioning components to move relative to each other in the second direction, so as to limit the diaphragm to the second direction target position between the two second direction positioning components in the second direction, and the first direction is perpendicular to the second direction.

[0022] The utility model provides a sheet unloading device, in which a sheet unloading plate is arranged on a sheet unloading platform bracket, and the sheet unloading plate is driven by a sheet unloading driving device and can be switched between a sheet loading position and a sheet unloading position. In the initial state, the sheet unloading plate is in a sheet loading position, and an upstream conveying device conveys the film sheet that has been inspected to the sheet unloading plate. If the film sheet is a second-category product, the sheet unloading plate remains in the sheet loading position, waiting for the transfer device to transfer the second-category product to a corresponding position. If the film sheet is a first-category product, the sheet unloading plate is driven by a sheet unloading driving device and switched to the sheet unloading position, and the first-category product falls through a sheet dropping channel to achieve sheet separation of the second-category product and the first-category product.

[0023] A film defect detection device, comprising a film unloading device and a detection device as described in any one of the above items;

[0024] The detection device is used to detect whether the membrane is a first-category product or a second-category product, and send the detection result to a lower film controller of the lower film device.

[0025] The diaphragm defect detection equipment provided by the utility model has all the technical effects of the above-mentioned film unloading device, and will not be described in detail herein. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 It is a structural schematic diagram of a sheet lowering device at an angle disclosed in an embodiment of the utility model;

[0028] Figure 2It is a structural schematic diagram of a sheet lowering device at another angle disclosed in an embodiment of the utility model;

[0029] Figure 3 A top view of a sheet lowering device disclosed in an embodiment of the utility model;

[0030] Figure 4 for Figure 1 A partial enlarged view of middle A.

[0031] Figure 5 It is a structural schematic diagram of a first direction adjustment mechanism disclosed in an embodiment of the utility model;

[0032] Figure 6 It is a front view of the first direction adjustment mechanism disclosed in the embodiment of the utility model;

[0033] Figure 7 A top view of a first direction adjustment mechanism disclosed in an embodiment of the utility model;

[0034] Figure 8 It is a structural schematic diagram of the second direction adjustment mechanism disclosed in an embodiment of the utility model;

[0035] The meanings of the reference numerals in the figures are as follows:

[0036] 100-first direction adjustment mechanism; 101-first direction mounting seat; 102-displacement driving device; 103-pressing plate; 104-pressing driving device; 105-hinge support; 106-first direction guide rail; 107-speed regulating valve; 108-pressure regulating valve; 109-vertical plate; 110-limit baffle; 111-auxiliary parts;

[0037] 200-second direction adjustment mechanism; 201-second direction mounting seat; 202-second direction guide rail; 203-second direction driving motor; 204-synchronous belt; 205-second direction guide slider; 206-synchronous pulley; 207-second direction positioning beam; 208-second direction positioning column; 209-limit sensor; 210-movement range limiter;

[0038] 300-lower film platform; 301-lower film platform bracket; 302-lower film plate; 3021-second direction guide slide; 303-lower film driving device; 304-turning shaft; 305-upper limit piece of film plate; 306-limiting plate of film box; 307-bearing; 308-guide plate; 309-sensor; 310-sensor; 311-lower limit piece of film plate;

[0039] 400-film box; 401-film box roller; 402-extraction handle;

[0040] 500-to-sheet sensor. DETAILED DESCRIPTION

[0041] The core of the utility model is to provide a sheet discharging device to realize the separation of the second category products and the first category products;

[0042] Another core of the utility model is to provide a film defect detection device having the above-mentioned film unloading device.

[0043] The reflector is an important component of the display device. Defects such as scratches on its surface will affect the quality of the reflector, so it is necessary to perform defect detection, such as scratch detection. After the reflector is defect-detected, it is necessary to separate the second-category products and the first-category products. It should be noted that the second-category products and the first-category products do not only refer to qualified products and defective products. As long as there are two types of products that require separation, the lowering device disclosed in this embodiment can be used for separation. The second-category products need to be transferred to other locations by the transfer device. Manual separation is usually used in the prior art, which is inefficient.

[0044] Based on the above reasons, the present utility model discloses a film-cutting device for completing the film cutting of the second type of products and the first type of products. It should be noted that the film-cutting device disclosed in this embodiment is not limited to the film cutting of the reflective film, and is also applicable to other films with film cutting requirements.

[0045] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0046] like Figure 1-Figure 3 As shown, the embodiment of the utility model discloses a lower film device, including a lower film platform 300, and the lower film platform 300 may include a lower film plate 302 and a lower film driving device 303. In order to support the lower film plate 302 and the lower film driving device 303, a lower film platform bracket 301 may also be provided, and the lower film platform bracket 301 is used to provide a mounting base for the components thereon, and at the same time, the height of the lower film plate 302 can be increased, and a certain space is maintained below the lower film plate 302, so as to provide an escape space for the lower film plate 302 to swing downward.

[0047] The lower film plate 302 is arranged on the lower film stage bracket 301, and can be switched between a loading position and a lower film position. The loading position is the position where the upper surface of the lower film plate 302 carries the film. Normally, when the lower film plate 302 is in a horizontal state, it is defined as the loading position of the lower film plate 302 to facilitate the loading of the lower film plate 302.

[0048] The lower film position is the position where the lower film plate 302 opens toward the bottom surface of the lower film platform 300 to form a film drop channel for the film to fall, so that the film on the lower film plate 302 can fall from the film drop channel under the action of gravity. The utility model can distinguish the second category of products from the first category of products by switching the position of the lower film plate 302, for example, keeping the second category of products on the lower film plate 302 and letting the first category of products fall through the film drop channel.

[0049] The lower film driving device 303 is arranged on the lower film stage bracket 301, and is used to drive the lower film plate 302 to swing, so as to switch between the film loading position and the lower film position. Specifically, the lower film driving device 303 can be a servo motor, and the output end of the lower film driving device 303 is connected to the flip shaft 304, and the flip shaft 304 can be supported on the lower film stage bracket 301 through a bearing 307. One side of the lower film plate 302 is fixed on the flip shaft 304. The lower film driving device 303 outputs torque, drives the flip shaft 304 to rotate around its own axis, and during the rotation of the flip shaft 304, drives the lower film plate 302 to swing, and then switches between the film loading position and the lower film position.

[0050] In this embodiment, the lower film device may further include a lower film controller and a transfer device. The lower film controller is used to control the lower film driving device 303 to drive the lower film plate 302 to switch to the lower film position when the film on the lower film plate 302 in the film loading position is the first type of product. So that the lower film plate 302 forms a downwardly open film drop channel, and the first type of product can fall through the film drop channel and be collected at a position below the lower film plate 302. When the film on the lower film plate 302 in the film loading position is the second type of product, the lower film controller controls the transfer device to transfer the film.

[0051] After the film is inspected for defects, it is necessary to separate the second-type products from the first-type products on the unloading device. The second-type products need to be transferred to other locations by the transfer device. Since the position of the reflective sheet on the unloading device is relatively random, the transfer device cannot grab the corresponding position of the reflective sheet, affecting the accuracy of grabbing.

[0052] Based on this, in a specific embodiment of the present invention, the lower film device may further include a position adjustment mechanism for adjusting the position of the diaphragm, such as Figure 5 and Figure 8 As shown, the position adjustment mechanism is used to adjust the film on the lower film plate 302 at the film loading position to the target position. The lower film controller is used to control the position adjustment mechanism to adjust the position of the film when the film on the lower film plate 302 is a second type of product, and then control the transfer device to transfer the film; when the film on the lower film plate 302 is a first type of product, directly control the lower film driving device 303 to drive the lower film plate 302 to switch to the lower film position.

[0053] Specifically, the position adjustment mechanism may include at least one of a first direction adjustment mechanism 100 and a second direction adjustment mechanism 200 .

[0054] The first direction adjustment mechanism 100 is used to position the diaphragm to a first direction target position, and the second direction adjustment mechanism 200 is used to position the diaphragm to a second direction target position, and the first direction is perpendicular to the second direction. That is, when the position adjustment mechanism includes the first direction adjustment mechanism 100 and the second direction adjustment mechanism 200, the target position adjusted by the position adjustment mechanism includes the first direction target position and the second direction target position.

[0055] The position adjustment mechanism disclosed in the embodiment of the utility model can realize positioning of the diaphragm in the first direction through the first direction adjustment mechanism 100 to adjust the position of the diaphragm in the first direction. The diaphragm can be positioned in the second direction through the second direction adjustment mechanism 200 to adjust the position of the diaphragm in the second direction. The diaphragm is positioned at the lower plate 302 to facilitate the transfer device to grasp it.

[0056] The lower sheet controller can receive the detection results of the diaphragm. When the diaphragm on the lower sheet plate 302 is a second category product, the lower sheet controller is used to control the position adjustment mechanism to adjust the position of the diaphragm, that is, the diaphragm is positioned to the target position in the first direction and the second direction (first direction target position and second direction target position) through the position adjustment mechanism, so that the transfer device can grab the corresponding diaphragm at the above-mentioned target position, and grab the diaphragm to the corresponding position for the next processing.

[0057] When the film on the lower film plate 302 is the first type of product, the lower film controller is used to control the lower film driving device 303 to drive the lower film plate 302 to switch to the lower film position. Then the first type of product falls to the bottom of the lower film plate 302 through the film falling channel. A removable film box 400 can be set below the lower film plate 302 to collect the falling first type of products through the film box 400. After a certain amount of the first type of products are collected, the film box 400 can be withdrawn from the bottom of the lower film plate 302 for recycling.

[0058] The bottom of the object film box 400 may be provided with an object film box roller 401 to facilitate the extraction of the object film box 400. In order to locate the position of the object film box 400, a object film box limiting plate 306 may be provided on the lower film stage bracket 301. If one end of the lower film stage bracket 301 is the extraction end, the end opposite to the end is the limiting end, and the object film box limiting plate 306 should be provided at the limiting end of the lower film stage bracket 301. The object film box 400 is inserted into the lower film stage bracket 301 through the extraction end until the object film box 400 abuts against the object film box limiting plate 306. In order to facilitate the extraction of the object film box 400, the object film box 400 may be provided with a corresponding extraction handle 402.

[0059] Guide wheels can also be provided on both sides of the object film box 400, and the guide wheels roll with the longitudinal beams of the lower film platform bracket 301 to further improve the smoothness of extracting the object film box 400. In addition, the lower film platform bracket 301 can be provided with a guide plate 308 at the extraction end, and the guide plate 308 is a flared structure to facilitate the object film box 400 to be pushed into the lower part of the lower film platform bracket 301.

[0060] Furthermore, the lower film controller is also used to receive parameter information of the film, and control the lower film plate 302 to be in different lower film positions according to the parameter information; the lower film plate 302 at different lower film positions opens at different angles toward the bottom surface of the lower film platform 300. Generally, the lower film plate 302 can be turned downward by 0 to 90 degrees, and the lower film drive device 303 controls the corresponding rotation angle of the turning shaft 304 according to the film of different sizes. The film of different sizes can have different rotation angles, that is, the size of the film drop channel formed can be different, which should be determined according to the size of the film, as long as it can ensure that the film can fall into the object film box 400.

[0061] In order to improve the degree of automation, the lower film controller can automatically control the position adjustment mechanism and the lower film driving device 303 to operate when there is a film on the lower film plate 302. In this embodiment, the lower film device may also include a film arrival sensor 500 for detecting whether there is a film on the lower film plate 302 at the film loading position. The film arrival sensor 500 is connected to the lower film controller. After the film that has completed the previous process is placed on the lower film plate 302, it will be detected by the film arrival sensor 500.

[0062] When the film arrival sensor 500 detects the film, a working signal is sent to the lower film controller. After receiving the working signal, the lower film controller is used to perform corresponding actions according to whether the film on the lower film plate 302 at the film loading position is a first-category product or a second-category product. That is, when the film is a second-category product, the lower film controller controls the position adjustment mechanism to adjust the position of the film, and when the film is a first-category product, controls the lower film driving device 303 to drive the lower film plate 302 to switch to the lower film position.

[0063] It should be noted that when the diaphragm is a second-category product, the lower film controller first controls the second direction adjustment mechanism 200 to perform center positioning and move the diaphragm to the second direction target position, and then controls the first direction adjustment mechanism 100 to perform positioning and move the diaphragm to the first direction target position.

[0064] The lower film controller controls the first direction adjustment mechanism 100 to perform positioning, specifically including:

[0065] Control the displacement driving device 102 to drive the paddle assembly to move along the first direction to the position to be adjusted, that is, in the initial state, the paddle assembly waits at the reference position;

[0066] When the paddle assembly moves to the position to be adjusted, the tablet pressing driving device 104 is controlled to drive the tablet pressing plate 103 to the tablet pressing position, that is, in the initial state, the tablet pressing plate 103 is in an idle position. After the adjustment action in the first direction is completed, the tablet pressing plate 103 is driven by the tablet pressing driving device 104 and switches to the idle position to wait for the next adjustment;

[0067] When the pressing plate 103 is located at the pressing position, the displacement driving device 102 is controlled to drive the paddle assembly to move to the reference position along the first direction, and then the pressing plate 103 is driven by the pressing driving device 104 to switch to the idle position.

[0068] In a specific embodiment of the utility model, the number of the lower plate 302 is two or more, and the docking position of at least two lower plate 302 corresponds to the target position after adjustment by the position adjustment mechanism, so that the position adjustment mechanism adjusts the second type of product to this position. It should be noted that when the position adjustment mechanism includes a first direction adjustment mechanism and a second direction adjustment mechanism, the target position includes a first direction target position and a second direction target position. Among them, the first direction target position can be the edge position of the lower plate 302 in the first direction; the second direction target position can be the center position of the lower plate 302 in the second direction.

[0069] like Figure 4 As shown, a rotation angle limit sensor can be provided at the end of the flip shaft 304, and the rotation angle limit sensor includes an inductor 310 and a sensor sheet 309, wherein the inductor 310 is mounted on the end support of the flip shaft 304, and the sensor sheet 309 is mounted at the end of the flip shaft 304. When the flip shaft 304 drives the lower plate 302 to rotate, the sensor sheet 309 rotates accordingly, and when the lower plate 302 rotates to the position of the inductor 310, the lower plate controller controls the lower plate driving device 303 to stop. Specifically, the position of the inductor 310 can be set according to the lower plate position and the film loading position of the lower plate 302, so that the lower plate driving device 303 can stop when driving the lower plate 302 to move to the lower plate position and the film loading position.

[0070] In a specific embodiment of the utility model, a plate limiter is provided on the lower plate support 301 to limit the safe rotation range of the lower plate 302. The plate limiter may include an upper plate limiter 305 and a lower plate limiter 311. The movement of the lower plate 302 is limited by the upper plate limiter 305 and the lower plate limiter 311, so that the lower plate 302 can only move between the upper plate limiter 305 and the lower plate limiter 311.

[0071] It should be noted that the range of motion constrained by the upper limit member 305 and the lower limit member 311 of the sheet plate may be larger than the range of motion constrained by the rotation angle limit sensor. Even if the rotation angle limit sensor is damaged, resulting in the lower sheet plate 302 not stopping at the corresponding position, it will be stopped by the upper limit member 305 or the lower limit member 311 of the sheet plate when it continues to move, thereby preventing the lower sheet plate 302 from swinging out of the safe area and ensuring that the lower sheet plate 302 can only swing within a safe range.

[0072] like Figure 5-Figure 7 As shown, in this embodiment, the first direction adjustment mechanism 100 includes a paddle assembly and a displacement assembly. The paddle assembly includes a pressing plate 103 and a pressing drive device 104 for driving the pressing plate 103 to switch between the idle position and the pressing position. It should be noted that the movement process of the pressing plate 103 switching between the idle position and the pressing position can be swinging or linear motion, and this embodiment does not limit the switching movement process.

[0073] The pressing position of the pressing plate 103 is the position where the pressing plate 103 contacts the diaphragm. It can be understood that when the pressing plate 103 is in the pressing position, it can press the diaphragm that needs to be adjusted. By utilizing the friction between the two, the effect of moving the diaphragm can be achieved by moving the paddle assembly.

[0074] The idle position of the pressing plate 103 is a position where there is a gap between the pressing plate 103 and the diaphragm. It can be understood that when the pressing plate 103 is in the idle position, it can loosen the diaphragm. At this time, the paddle assembly can be moved alone, and the diaphragm can also be moved alone, and the two no longer move synchronously.

[0075] The displacement assembly includes a displacement drive device 102, and the paddle assembly is arranged at the displacement end of the displacement drive device 102 to drive the paddle assembly to switch between the position to be adjusted and the reference position along the first direction. When the paddle assembly is in the position to be adjusted, the diaphragm is pressed by the pressing plate 103, and then the paddle assembly is moved to the reference position under the action of the displacement drive device 102, and the diaphragm follows the paddle assembly to move to the reference position. It should be noted that the position to be adjusted of the paddle assembly is the position where the pressing plate 103 is located above the diaphragm, so that the pressing plate 103 can press the diaphragm when it moves to the pressing position. When the paddle assembly is in the reference position, the pressing plate 103 can pull the diaphragm to the target position in the first direction, that is, when the paddle assembly moves to the reference position, it drives the diaphragm to move to the target position in the first direction, completing the adjustment in the first direction, and avoiding the problem of the diaphragm deviating from the target position in the first direction in the first direction.

[0076] The first direction adjustment mechanism 100 can be used to position the diaphragm in the first direction to adjust the position of the diaphragm in the first direction. Specifically, before the diaphragm comes in, the displacement assembly can move the paddle assembly to the position to be adjusted and wait for the diaphragm to be in place. When the diaphragm is in place, the pressing plate 103 can be driven from the idle position to the pressing position by the pressing plate driving device 104, so that the pressing plate 103 presses the diaphragm and generates friction between the diaphragm and the pressing plate 103 to drive the diaphragm to move. The displacement assembly drives the paddle assembly and the diaphragm pressed by the pressing plate 103 to move in the direction of the reference position until the diaphragm is pulled to the target position in the first direction, completing the adjustment in the first direction.

[0077] The first direction adjustment mechanism disclosed in this embodiment presses the diaphragm and moves the diaphragm to the first direction target position by pulling. It should be noted that the first direction adjustment mechanism can also push the diaphragm to the first direction target position by pushing. The pushing method does not require a paddle assembly. It only needs to install the displacement assembly on the opposite side of the first direction target position, and push the diaphragm to the first direction target position along the first direction on the opposite side of the first direction target position.

[0078] Since the thickness of the diaphragm is relatively thin, if the front end of the diaphragm is blocked during the pushing process, the diaphragm will bulge. After the pushing device pushes the preset distance, it will mistakenly think that it has been pushed into place, resulting in adjustment failure. The first direction adjustment mechanism disclosed in the embodiment of the utility model adopts a pulling method, that is, the end of the diaphragm close to the target position in the first direction (that is, the front end in the first direction) is pressed by the pressure plate 103, and it moves along the first direction to the target position in the first direction. Because the pressure plate 103 presses the diaphragm, the bulge of the diaphragm during the movement can be avoided, and the problem of adjustment failure is also avoided. The utility model is particularly suitable for diaphragms such as TV transmitters that are not thick and hard, and the effect is remarkable. In addition, the structure is simple and feasible, and it is suitable for diaphragms of various sizes and models.

[0079] In a specific embodiment of the utility model, the tablet pressing plate 103 includes a tablet pressing end and a driven end, and the driving end of the tablet pressing driving device 104 acts on the driven end to drive the tablet pressing end to perform a lifting action to switch between the idle position and the tablet pressing position. It should be noted that a strip hole can be opened on the driven end, and a fastener passes through the strip hole to be fastened to the driving end of the tablet pressing driving device 104, so that the installation position of the tablet pressing plate 103 on the tablet pressing driving device 104 can be adjusted according to needs.

[0080] Furthermore, the surface of the pressing end of the pressing plate 103 that is used to contact the surface of the diaphragm is provided with an auxiliary member 111 that is used to contact the diaphragm. The auxiliary member 111 can be a buffer member (such as a silicone buffer member, a rubber buffer member, etc.) with a thickness of 2mm-4mm. The auxiliary member 111 contacts the diaphragm product, which can increase the friction with the surface of the diaphragm product and prevent the diaphragm from being scratched.

[0081] In this embodiment, the pressing end of the pressing plate 103 can be designed to have an area per unit length that is larger than the area per unit length of the driving end of the pressing plate 103. Taking the case where both the pressing end and the driving end are rectangular as an example, the width of the pressure end can be designed to be larger than the width of the driving end, so that the pressing end can have a larger contact area with the diaphragm at a certain length, thereby increasing the friction between the two.

[0082] The lifting end of the tablet pressing drive device 104 is hinged to the driven end of the tablet pressing plate 103, and the driven end of the tablet pressing plate 103 is hinged to the hinge support 105 to form the swing center of the tablet pressing plate 103. It should be noted that in this embodiment, the tablet pressing drive device 104 is arranged closer to the tablet pressing end than the hinge support 105, so that when the lifting end of the tablet pressing drive device 104 descends, the tablet pressing end can be driven to swing downward around the rotation center of the hinge support 105, and when the lifting end of the tablet pressing drive device 104 rises, the tablet pressing end can be driven to swing upward around the rotation center of the hinge support 105. The hinge support 105 can be fixed to the displacement end of the displacement drive device 102.

[0083] In order to facilitate the installation of the first direction adjustment mechanism 100, the first direction adjustment mechanism 100 may include a first direction mounting seat 101, and the displacement assembly is arranged on the first direction mounting seat 101. The first direction mounting seat 101 is also provided with a vertical plate 109, and the vertical plate 109 is provided with a strip-shaped mounting hole for inserting a fastener, so that the first direction adjustment mechanism 100 can be installed on a corresponding device through the vertical plate 109.

[0084] In order to facilitate the movement of the pressing drive device 104 with the displacement end of the displacement drive device 102, a first direction guide rail 106 is arranged on the first direction mounting seat 101. The extension direction of the first direction guide rail 106 is the first direction, so that the paddle assembly can move along the guiding direction of the first direction guide rail 106, thereby improving the reliability of the movement of the paddle assembly.

[0085] like Figure 1As shown, in a specific embodiment of the utility model, the first direction adjustment mechanism 100 may also include a limit baffle 110 for limiting the target position in the first direction. When the paddle assembly is located at the reference position, one side of the diaphragm abuts against the limit baffle 110. In actual application, when the displacement assembly drives the paddle assembly and the diaphragm pressed by the pressing plate 103 to move in the direction of the reference position, as the paddle assembly gradually moves toward the reference position, the diaphragm gradually moves in the direction of the limit baffle 110 until the paddle assembly reaches the reference position, and the diaphragm abuts against the limit baffle 110 and reaches the target position in the first direction. In addition, the end of the diaphragm abuts against the limit baffle 110, and the contact force between the two can also be used to align the diaphragm.

[0086] Specifically, the tablet pressing drive device 104 and the displacement drive device 102 may both be piston cylinders, such as air cylinders, and a pressure regulating valve 108 is provided on the pressure pipeline of the tablet pressing drive device 104 , and a speed regulating valve 107 is provided on the pressure pipeline of the displacement drive device 102 .

[0087] In this embodiment, a pressure regulating valve 108 is provided on the pressure pipeline of the pressing plate driving device 104. The pressure regulating valve 108 can be used to set or adjust the pressure of the pressing plate 103 acting on the diaphragm, so that the pressure can ensure that the friction force between the pressing plate 103 and the diaphragm is within a relatively suitable range, for example, the diaphragm can follow the movement of the pressing plate 103 without damaging the diaphragm.

[0088] A speed regulating valve 107 is provided on the pressure pipeline of the displacement driving device 102. The speed regulating valve 107 can be used to set or adjust the displacement speed output by the displacement driving device 102 so as to keep the diaphragm at a relatively suitable speed during the adjusted movement process.

[0089] like Figure 8 As shown, in this embodiment, the second direction adjustment mechanism 200 may include two second direction positioning components and a second direction driving mechanism, and the second direction driving mechanism is used to drive the two second direction positioning components to move relative to each other in the second direction, so as to limit the diaphragm to the second direction target position between the two second direction positioning components in the second direction. The movement directions of the two second direction positioning components are opposite, and the movement speeds are the same. The two second direction positioning components can move closer to each other and move away from each other under the action of the second direction driving mechanism. When the diaphragm needs to be adjusted, the two second direction positioning components are respectively located on both sides of the diaphragm, and then the two second direction positioning components are controlled to move closer to each other. During the movement, the diaphragm located between the two can be centered to position the diaphragm at the second direction target position, wherein the first direction is perpendicular to the second direction.

[0090] In this embodiment, the second direction driving mechanism includes a second direction driving motor 203 and a synchronous belt mechanism, and the second direction driving motor 203 drives the synchronous belt mechanism to operate. The synchronous belt mechanism includes two synchronous pulleys 206 and a synchronous belt 204 driven by the two synchronous pulleys 206, wherein one synchronous pulley 206 is connected to the output shaft of the second direction driving motor 203, and the two synchronous pulleys 206 divide the synchronous belt 204 into a first synchronous belt portion and a second synchronous belt portion with opposite movement directions, and the first synchronous belt portion and the second synchronous belt portion are parallel. One of the second direction positioning components is connected to the first synchronous belt portion, and the other second direction positioning component is connected to the second synchronous belt portion.

[0091] The first synchronous belt portion and the second synchronous belt portion both move along the second direction, but the movement directions are opposite. Taking the second movement direction as the left and right direction as an example, when the first synchronous belt portion moves to the left, the second synchronous belt portion moves to the right, and when the first synchronous belt portion moves to the right, the second synchronous belt portion moves to the left, thereby allowing the two second direction positioning components respectively connected to the first synchronous belt portion and the second synchronous belt portion to move closer to or away from each other.

[0092] When the two second direction positioning components are away from each other, the diaphragm can be conveniently placed between the two second direction positioning components. When the two second direction positioning components are close to each other, the diaphragm can be pushed to move to the middle position between the two second direction positioning components (i.e., the second direction target position).

[0093] In order to position the second direction positioning component, a corresponding limit sensor 209 may be provided, and the limit position of the second direction positioning component may be positioned by the limit sensor 209, so that the second direction positioning component may stop automatically when it moves to the corresponding position.

[0094] In order to ensure that the second direction positioning component moves within the safe range, a moving range limiter 210 can be added, and the moving range limiter 210 will hinder the movement of the second direction positioning component. The moving range limiter 210 can be set on the outside of the limit sensor 209. Even if the limit sensor 209 is damaged, causing the second direction positioning component to not stop at the corresponding position, it will be stopped by the moving range limiter 210 when it continues to move, so as to prevent the second direction positioning component from moving out of the safe area and ensure that the second direction positioning component can only move within the safe range.

[0095] Further, such as Figure 8As shown, the second direction positioning assembly may include a second direction positioning beam 207 and a second direction positioning column 208 disposed on the second direction positioning beam 207. There are a plurality of second direction positioning columns 208, which are arranged at intervals along the length direction of the second direction positioning beam 207. A second direction guide slot 3021 extending along the second direction may be provided on the lower plate 302 of the lower sheet platform 300, and each second direction positioning column 208 is positioned in the second direction guide slot 3021, respectively.

[0096] When the second direction adjustment mechanism 200 adjusts the position of the diaphragm, the second direction positioning beam 207 moves along the second direction, and the second direction positioning column 208 slides along the second direction guide slot 3021, and the second direction positioning column 208 pushes the diaphragm to the middle position of the two second direction positioning beams 207. In order to adjust the position of a large-sized diaphragm, the length of the second direction positioning beam 207 needs to be designed to be longer. Usually, one end of the second direction positioning beam 207 is connected to the synchronous belt, so that the second direction positioning beam 207 is a cantilever beam structure. During the movement, the second direction positioning beam 207 will be deflected. In this embodiment, the second direction guiding slot 3021 guides each second direction positioning column 208, which can avoid the second direction positioning beam 207 from being deflected, thereby improving the reliability of the movement process.

[0097] In order to facilitate the installation of the second direction adjustment mechanism 200, the second direction adjustment mechanism 200 may include a second direction mounting seat 201, and the second direction adjustment mechanism 200 may be installed through the second direction mounting seat 201. A second direction guide rail 202 may be provided on the second direction mounting seat 201, and a second direction guide slider 205 may be provided at the end of the second direction positioning beam 207. The second direction guide slider 205 may be slidably matched with the second direction guide rail 202, and may be connected to a synchronous belt through the second direction guide slider 205, so as to achieve the purpose of the synchronous belt driving the second direction positioning beam 207 to move along the second direction. The moving range limiter 210 may be provided on the second direction mounting seat 201, and is located on one side of the second direction guide rail 202, and is located on the moving path of the second direction guide slider 205, so as to limit the second direction guide slider 205, thereby ensuring that the second direction positioning assembly can only move within a safe range.

[0098] The present utility model also discloses a film defect detection device, including a film discharging device and a detection device as disclosed in the above embodiment; wherein the detection device is used to detect whether the film is a first-category product or a second-category product, and send the detection result to a film discharging controller of the film discharging device. The control signal output by the film discharging controller based on the detection result can refer to the above embodiment, and will not be described in detail herein.

[0099] Since the above-mentioned sheet lowering device is provided, all the technical effects of the above-mentioned sheet lowering device are achieved, which will not be described in detail in this article.

[0100] It should be noted that the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0101] As shown in this application and claims, unless the context clearly indicates an exception, the words "a", "an", "a kind" and / or "the" do not refer to the singular, but also include the plural. Generally speaking, the terms "include" and "comprise" only indicate the inclusion of clearly identified steps and elements, and these steps and elements do not constitute an exclusive list. The method or device may also include other steps or elements. The elements defined by the sentence "includes a..." do not exclude the existence of other identical elements in the process, method, commodity or device that includes the elements.

[0102] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features.

[0103] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A sheet unloading device, characterized in that: The invention comprises a lower film platform (300), wherein the lower film platform (300) comprises a lower film plate (302) and a lower film driving device (303), wherein the lower film plate (302) is driven by the lower film driving device (303) to switch between a film loading position and a film lowering position, wherein the film loading position is the position where the upper surface of the lower film plate (302) carries a film; and the film lowering position is the position where the lower film plate (302) opens toward the bottom surface of the lower film platform (300) to form a film dropping channel for the film to fall.

2. The sheet unloading device according to claim 1, characterized in that: It also includes a lower film controller and a transfer device, wherein the lower film controller is used to control the lower film driving device (303) to drive the lower film plate (302) to switch to the lower film position when the film on the lower film plate (302) in the film loading position is a first type of product; and control the transfer device to transfer the film when the film on the lower film plate (302) in the film loading position is a second type of product.

3. The sheet unloading device according to claim 2, characterized in that: It also includes a position adjustment mechanism for adjusting the position of the film, wherein the position adjustment mechanism is used to adjust the film on the lower film plate (302) at the film-carrying position to a target position; The lower sheet controller is used to control the position adjustment mechanism to adjust the position of the diaphragm when the diaphragm on the lower sheet plate (302) is a second category product, and then control the transfer device to transfer the diaphragm; when the diaphragm on the lower sheet plate (302) is a first category product, directly control the lower sheet drive device (303) to drive the lower sheet plate (302) to switch to the lower sheet position.

4. The sheet unloading device according to claim 2 or 3, characterized in that: The lower film controller is also used to receive parameter information of the diaphragm and control the lower film plate (302) to be in different lower film positions according to the parameter information; the lower film plate (302) at different lower film positions opens at different angles toward the bottom surface of the lower film platform (300).

5. The sheet unloading device according to claim 4, characterized in that: It also includes a film arrival sensor (500) connected to the film lowering controller, the film arrival sensor (500) is used to detect whether there is a film on the film lowering plate (302) at the film loading position, and send a working signal to the film lowering controller when there is a film; The lower film controller is used to perform corresponding actions after receiving the working signal according to whether the film on the lower film plate (302) at the film loading position is a first type of product or a second type of product.

6. The sheet unloading device according to claim 3, characterized in that: The number of the lower sheet plates (302) is two or more, and the docking positions of at least two of the lower sheet plates correspond to the target positions after adjustment by the position adjustment mechanism.

7. The sheet unloading device according to claim 1, characterized in that: The lower sheet platform (300) also has a sheet plate limiting member to limit the safe rotation range of the lower sheet plate (302).

8. The sheet unloading device according to claim 1, characterized in that: A removable film box (400) is also provided below the lower film plate (302), and the film box (400) is used to collect the films falling from the film falling channel.

9. The sheet unloading device according to claim 3, characterized in that: The position adjustment mechanism comprises a first direction adjustment mechanism (100), wherein the first direction adjustment mechanism (100) comprises: A paddle assembly, comprising a pressing plate (103) and a pressing drive device (104) for driving the pressing plate (103) to switch between an idle position and a pressing position, wherein the pressing position of the pressing plate (103) is a position where the pressing plate (103) contacts the surface of a diaphragm, and the idle position of the pressing plate (103) is a position where a gap exists between the pressing plate (103) and the surface of the diaphragm; The displacement assembly comprises a displacement drive device (102), wherein the paddle assembly is arranged at the displacement end of the displacement drive device (102) to drive the paddle assembly to move between a position to be adjusted and a reference position along a first direction to move the diaphragm to a target position in the first direction.

10. The sheet unloading device according to claim 9, characterized in that: The position adjustment mechanism also includes a second direction adjustment mechanism (200), the second direction adjustment mechanism (200) including two second direction positioning components and a second direction driving mechanism, the second direction driving mechanism being used to drive the two second direction positioning components to move relative to each other in the second direction, so as to limit the diaphragm to a second direction target position between the two second direction positioning components in the second direction, the first direction being perpendicular to the second direction.

11. A membrane defect detection device, characterized in that: A sheet loading device and a detection device as described in any one of claims 2 to 6, 9 and 10; The detection device is used to detect whether the membrane is a first-category product or a second-category product, and send the detection result to a lower film controller of the lower film device.

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